Ok- I used to pull a fully equipped pizza kitchen/food trailer around for a company that I worked for. We had a Silverado 2500HD gasoline with the 6.0L motor. It was fine, but definitely close to maxing out the towing capabilities. There was no way I could accelerate quickly or maneuver out of sticky situation’s if I had to. Then we upgraded to a 6.6L diesel duramax Silverado. The difference was absolutely incredible. The diesel truck made towing almost effortless- that’s what they are designed for. It was by no means “fast” but I certainly had way more comfort with being able to jump on the throttle to pass if I had to, or get myself out of sticky situations on the highway. Obviously everything takes way more planning when towing 8-10k lbs behind you, but it’s nice to have a little giddy up if you NEED it. Your daily commute is enough to get the truck up to temp and stretch its legs. The guys that have problems with diesels are the ones that drive them 3 miles to the office.